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#1 |
Senior Member
Join Date: Sep 2004
Location: Wakaw, Sask, Canada
Posts: 3,180
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BB P/s pump question
This is for anyone who has swapped in a big block: On original trucks I see a power steering reservoir used, but is this necessary when swapping in a 454 from a mid 70's truck? What did the later trucks use? Thanks.
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"You can take the man out of PA, but you can't take PA out of the man" |
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#2 |
Senior Member
![]() Join Date: Mar 2003
Location: Colfax-California
Posts: 8,553
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The earlier trucks used the short water pump which did not allow room for the reservoir and filler neck, the later models had the longer pump.
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#3 |
Senior Member
Join Date: Sep 2004
Location: Wakaw, Sask, Canada
Posts: 3,180
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So if I use a long water pump I can use a regular pump that will resemble a set up like a 350 would have? Thanks.
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"You can take the man out of PA, but you can't take PA out of the man" |
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#4 |
Senior Member
![]() Join Date: Mar 2003
Location: Colfax-California
Posts: 8,553
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Close, the longer water pumps have the alternator on the pass side and the AC above the PS pump, so if you have AC it requires a little bit different pump reservoir that tips forward of the AC bracket that bolts to the front of the head.
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#5 |
Senior Member
Join Date: Sep 2004
Location: Wakaw, Sask, Canada
Posts: 3,180
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There will be no A/C on this truck. So, I guess I am asking can I just take the complete mid 70's 454 truck engine and drop it into the 70 GMC I have?
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"You can take the man out of PA, but you can't take PA out of the man" |
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#6 |
Watch out for your cornhole !
![]() Join Date: Jun 2003
Location: Azle, Texas
Posts: 14,162
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Sure, why not?
It's all together and working in the later model truck. What truck it's bolted in to shouldn't affect anything. As long as you use everything as a matched set of pulleys and brackets off the later model truck.
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#7 |
Registered User
Join Date: Feb 2004
Location: Tacoma WA
Posts: 1,365
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BB with Long WP
I installed a 454 with a long pump setup - alt. on pass side and power steering. I used 72 BB motor mounts so motor is in stock location. I have very little space between the fan and the 4 core radiator. This set up is using a clutch fan and the clearance is TIGHT.
Without the clutch fan you will have more clearance but I recommend the short pump if you can swing it.
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67 C-20 LWB, tilt, speed alert, vac, 454, T400 67 C-10 SWB, factory air with more to follow |
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